Fig.1
Time schedule of the experiment.
Table 1
Overview of extracted parameters from the EDA responses that were used in the data analyses.
| Parameter | Description | Unit |
|---|---|---|
| NS.SCRs_Amp | Amplitude of the nonspecific skin conductance responses | μS |
| NS.SPRs_Amp | Amplitude of the nonspecific skin potential responses | mV |
| SPRET | Turning point of the NS.SPRs relative to the NS.SCRs peak | % |
| NS.SCRs_Trise | Time from onset of NS.SCRs to peak NS.SCRs | S |
Table 2
Frequency of subjects NS.SCRs and NS.SPRs responding in relaxation periods
| NS.SCRs | NS.SPRs | |||
|---|---|---|---|---|
| 1st period | 2nd period | 1st period | 2nd period | |
| Subject | ±3.37 | ±3.83 | ±3.34 | ±3.75 |
| 1 | 6 | 8 | 6 | 8 |
| 2 | 7 | 6 | 7 | 6 |
| 3 | 10 | 15 | 9 | 14 |
| 4 | 4 | 3 | 3 | 2 |
| 5 | 7 | 4 | 7 | 4 |
| 6 | 5 | 2 | 5 | 2 |
| 7 | 9 | 10 | 9 | 10 |
| 8 | 8 | 4 | 8 | 4 |
| 9 | 6 | 9 | 6 | 9 |
| 10 | 2 | 0 | 4 | 1 |
| 11 | 11 | 6 | 11 | 6 |
| 12 | 8 | 13 | 8 | 13 |
| 13 | 8 | 7 | 8 | 7 |
| 14 | 7 | 9 | 7 | 9 |
| 15 | 7 | 2 | 7 | 2 |
| 16 | 3 | 5 | 3 | 5 |
| 17 | 3 | 3 | 3 | 3 |
| 18 | 3 | 1 | 3 | 1 |
| 19 | 3 | 2 | 3 | 2 |
| 20 | 5 | 7 | 5 | 7 |
| 21 | 6 | 8 | 6 | 8 |
| 22 | 10 | 7 | 10 | 7 |
| 23 | 3 | 1 | 3 | 1 |
| 24 | 8 | 7 | 8 | 7 |
| 25 | 3 | 3 | 3 | 3 |
| 26 | 4 | 5 | 4 | 6 |
| 27 | 11 | 9 | 11 | 9 |
| 28 | 2 | 1 | 2 | 5 |
| 29 | 15 | 14 | 15 | 16 |
| 30 | 7 | 8 | 7 | 8 |
| 31 | 10 | 8 | 10 | 8 |
| 32 | 2 | 6 | 2 | 6 |
| 33 | 5 | 5 | 5 | 5 |
| 34 | 1 | 0 | 0 | 2 |
| 35 | 14 | 17 | 14 | 17 |
| 36 | 2 | 6 | 2 | 6 |
| 37 | 5 | 2 | 5 | 2 |
| 38 | 11 | 10 | 11 | 10 |
| 39 | 5 | 6 | 5 | 6 |
| 40 | 8 | 6 | 8 | 6 |
| 41 | 7 | 5 | 7 | 5 |
| 42 | 2 | 5 | 3 | 5 |
| 43 | 2 | 1 | 2 | 1 |
| 44 | 4 | 8 | 4 | 8 |
| 45 | 3 | 5 | 3 | 5 |
| 46 | 5 | 5 | 5 | 5 |
| 47 | 6 | 5 | 6 | 5 |
| 48 | 8 | 8 | 8 | 8 |
| 49 | 11 | 11 | 11 | 11 |
| 50 | 1 | 2 | 1 | 2 |
Table 3
Intraclass correlation coefficient (ICC) for the frequency of NS. SCRs and NS.SPRs obtained from the two relaxation periods
| Intraclass | 95% CI | ||
|---|---|---|---|
| Parameters | correlation | Lower | Upper |
| NS.SCRs | 0.773a | 0.632 | 0.865 |
| 0.872b | 0.774 | 0.928 | |
| NS.SPRs | 0.755a | 0.604 | 0.853 |
| 0.860b | 0.753 | 0.921 | |
[i] a= single measures, b= average measures
Fig. 2
Distribution of NS.SCRs frequency for the total sample (n = 50): (A) first resting period, and (B) second resting period.
Fig. 3
Distribution of NS.SPRs-frequency for the total sample (n = 50): (A) first resting period, and (B) second resting period.
Fig. 4
Box-plot with medians, quartiles and the min and max as whiskers shows average value of NS.SCRs_Amp at relaxation periods for all participants (n=50). **p<0.001
Fig. 5
Box-plot with medians, quartiles and the min and max as whiskers shows average value of NS.SPRs_Amp at relaxation periods for all participants (n=50). **p<0.005
Fig. 6
Box-plot with medians, quartiles and the min and max as whiskers shows average value of NS.SCRs_Tris at relaxation periods for all participants (n=50). **p<0.005
Fig. 7
Box-plot with medians, quartiles and the min and max as whiskers shows average value of SPRET at relaxation periods for all participants (n=50). **p<0.001
Fig. 8
SCRs, SSRs, and SPRs recorded from a test subjects, demonstrating stable waveform of SSRs in response to nonspecific stimuli.